--- CBOR-XS/XS.xs	2023/09/08 06:01:12	1.78
+++ CBOR-XS/XS.xs	2023/09/08 06:05:01	1.79
@@ -1245,7 +1245,7 @@
             {
               AV *av = (AV *)sv;
               sv = newRV_noinc (&PL_sv_undef);
-              av_push (av, sv);
+              av_push (av, SvREFCNT_inc_NN (sv));
             }
           else if (sv == &PL_sv_undef) // not yet decoded, but cycles not allowed
             ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");